Which of the following are features of elite theory? A. There have been trends that contribute to the formation of a
power elite.
B. Important social institutions grant legitimacy to the "big three"
sectors.
C. Most ordinary Americans are uninterested in politics.
D. All of the above.

yellow fever and other tropical diseases

genetics is the study of how dna works, the methodologies defining the new recent technologies allow scientist to have a panoramic view of the entire dna landscape, especially how genomes interact with their environment, including off course, factors outside their organisms.

thus is very possible the existence of both scenarios, where populations of isolated individuals have different genetic traits, and share traits related to genetic mutation, due rats can easily travel overseas using human transport channels. so scientists could get a vast number of data, including human interaction, evolution of rodents, health development, spread of infections, development of new organisms, how genomes evolve in different environments and so on.